Agricultural Biotechnology MCQs

Question 1

The enzyme diastase was identified by

Accepted Answer

Payon and Persoz

Answer

Alexander Fleming

Answer

Christian Hansen

Answer

S. A. Waksman

Question 2

Dextran is used in

Accepted Answer

Blood Transfusion

Answer

Bleeding

Answer

Blood Clotting

Answer

Blood Pressure

Question 3

When plant diversity is maintained in natural habitats, the conservation is called

Accepted Answer

In situ

Answer

In vitro

Answer

In vivo

Answer

Ex situ

Question 4

The replication independent histone protein synthesis takes place in

Accepted Answer

Throughout the cell cycle

Answer

Interphase

Answer

S phase

Answer

G1 phase

Question 5

The most imprtant amino acid for somatic embryogenesis is

Accepted Answer

Glutamine

Answer

Glycine

Answer

Lysine

Answer

Aspargine

Question 6

RNA molecules involved in splicing are

Accepted Answer

Sn rRNA

Answer

5s rRNA

Answer

16s RNA

Answer

mRNA

Question 7

What is a disadvantage of the current use of transgenic anitbody fragments to induce resistance to the herbicide picloram?

Accepted Answer

Each antibody molecule can neutralize only one herbicide molecule

Answer

Picloram is an auxinic herbicide, thus the antibodies will neutralize endogenous auxin

Answer

The antibodies induce morphological defects (e.g. epinasty)

Answer

The antibodies are quickly degraded by host enzymes, so they have little effect on picloram

Question 8

Nitrate reductase enzyme is

Accepted Answer

Inducible

Answer

Constitutive

Answer

Either A or B

Answer

None of the above

Question 9

The conversion of glycine to serine occurs in

Accepted Answer

Mitochondria

Answer

Cytosol

Answer

Peroxisome

Answer

Chloroplast